Another shaver socket question

[m4tty]

Hi,

Ive just checked my shaver socket in my house and my MFT1552 is reading 277v. Is this ok??

Ive checked a friends shaver socket and its reading 63V.

What should they be reading.

Thanks

 

[Lurch]

It should be a 1:1 transformer so should read whatever the supply voltage is, ish.

 

[Evans Electric]

As Lurchio says should get reading as the mains but only across the 2 pin socket. 277v is wierd TBH and next doors 63v also. Might get 110v across socket if its a dual voltage.

What is an MFT1552 ? Have you tried it on your mains the highest S/Pole voltage I've found was 260v .

Deke

 

[paul b b]

What is an MFT1552 ?

Deke

come on Deke, it's only the best megger out there!

 

[Evans Electric]

Sorry M8 but its just a number to me. I'm a Martindale man myself.

 

[paul b b]

and i had you down as a fluke man

 

[paul b b]

ahhhh poll idea!

 

[kme]

Too late. One`s already been done on the subject.

 

[m4tty]

As Lurchio says should get reading as the mains but only across the 2 pin socket. 277v is wierd TBH and next doors 63v also. Might get 110v across socket if its a dual voltage.What is an MFT1552 ? Have you tried it on your mains the highest S/Pole voltage I've found was 260v .

Deke

The Mains Voltage is 248V as transformer about 50ft away but the voltage at the shaver socket is 277V. Wierd

 

[BS3036]

Not really, assuming you mesured it off load. The transformer will have some series resistance and on load that will likely drop most of the excess. It's just a way to make them cheaply enough to sell.

BTW the one next door. Probably you were measuring a capacitively picked up voltage. It is possible that your probes did not activate the switch which plugging in a shaver usually operates.

 

[SPECIAL LOCATION]

Not really, assuming you mesured it off load. The transformer will have some series resistance and on load that will likely drop most of the excess. It's just a way to make them cheaply enough to sell.BTW the one next door. Probably you were measuring a capacitively picked up voltage. It is possible that your probes did not activate the switch which plugging in a shaver usually operates.

Concur!!Applaud Smiley

on Both points...

One way to read the voltage ON load is, get one of them 2pin to 3pin euro plug adaptor thingys..

Stick the 2pins in the shaver socket, so the switch is triggered, plug a low power load in to the 3 pin socket... (e.g. 40w table lamp), one with a plug top you can remove...

With care stick your meter probes across the plugs 'L' & 'N' pins!

Then see what voltage you are getting!